I noticed this after trying to understand why my minimal Nova defconfig was not selecting NOVA_CORE anymore and why I couldn't even find it in menuconfig.
CONFIG_AUXILIARY_BUS cannot be enabled directly and must be selected by another module. Options that depend on it thus cannot be enabled unless a different module selecting AUXILIARY_BUS is also enabled. All non-Rust modules using CONFIG_AUXILIARY_BUS select it, so it should make sense for the Rust ones to use that scheme as well. Signed-off-by: Alexandre Courbot <acour...@nvidia.com> --- Alexandre Courbot (3): samples: rust: select AUXILIARY_BUS instead of depending on it gpu: nova-core: select AUXILIARY_BUS instead of depending on it gpu: drm: nova: select AUXILIARY_BUS instead of depending on it drivers/gpu/drm/nova/Kconfig | 2 +- drivers/gpu/nova-core/Kconfig | 2 +- samples/rust/Kconfig | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) --- base-commit: 61479ae38cb7bf6083de302598b7d491ec54168a change-id: 20250515-aux_bus-c9da900b7c3f Best regards, -- Alexandre Courbot <acour...@nvidia.com>